#include<bits/stdc++.h>
using namespace std;
#define N 100
class solution{
    public:
        void getarr(){
            cout<<"Enter a key\n";
            scanf("%d",&n);
            cout<<"OK\n";
            for(int i=0;i<n;i++){
                cin>>a[i];
            }
            cout<<"Success\n";
            cin>>k;
        }
        void Fink(){

        }
    private:
        int a[N];
        int k;
        int n;
};